2009-05-02 Vladimir Serbinenko <phcoder@gmail.com>
Efiemu * conf/i386-pc.rmk: new modules efiemu, efiemu_acpi, efiemu_pnvram, _linux_efi, linux_efi. new files in grub-emu new targets efiemu32.o and efiemu64.o * loader/linux_normal_efiemu.c: likewise * loader/i386/efi/linux.c: added preliminary efiemu support * util/i386/pc/grub-install.in: add efiemu??.o to the list of files to copy * include/grub/autoefi.h: new file * nclude/grub/i386/efiemu.h: likewise * include/grub/i386/pc/efiemu.h: likewise * include/grub/efi/api.h: add LL suffix when necessary new definitions relating to tables * include/grub/efiemu/efiemu.h: new file * include/grub/efiemu/runtime.h: likewise * efiemu/prepare.c: likewise * efiemu/loadcore_common.c: likewise * efiemu/loadcore64.c: likewise * efiemu/runtime/efiemu.sh: likewise * efiemu/runtime/efiemu.S: likewise * efiemu/runtime/efiemu.c: likewise * efiemu/runtime/config.h: likewise * efiemu/prepare32.c: likewise * efiemu/main.c: likewise * efiemu/modules/pnvram.c: likewise * efiemu/modules/i386: likewise * efiemu/modules/i386/pc: likewise * efiemu/modules/acpi.c: likewise * efiemu/i386/pc/cfgtables.c: likewise * efiemu/i386/loadcore64.c: likewise * efiemu/i386/loadcore32.c: likewise * efiemu/prepare64.c: likewise * efiemu/loadcore.c: likewise * efiemu/symbols.c: likewise * efiemu/mm.c: likewise * efiemu/loadcore32.c: likewise
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phcoder
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5caf964d75
29 changed files with 4068 additions and 14 deletions
189
efiemu/loadcore_common.c
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efiemu/loadcore_common.c
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/* Load runtime image of EFIemu. Functions common to 32/64-bit mode */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/file.h>
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#include <grub/err.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/efiemu/efiemu.h>
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#include <grub/cpu/efiemu.h>
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/* Are we in 32 or 64-bit mode?*/
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static grub_efiemu_mode_t grub_efiemu_mode = GRUB_EFIEMU_NOTLOADED;
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/* Runtime ELF file */
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static grub_ssize_t efiemu_core_size;
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static void *efiemu_core = 0;
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/* Linked list of segments */
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static grub_efiemu_segment_t efiemu_segments = 0;
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/* equivalent to sizeof (grub_efi_uintn_t) but taking the mode into account*/
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int
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grub_efiemu_sizeof_uintn_t (void)
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{
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if (grub_efiemu_mode == GRUB_EFIEMU32)
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return 4;
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if (grub_efiemu_mode == GRUB_EFIEMU64)
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return 8;
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return 0;
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}
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/* Check the header and set mode */
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static grub_err_t
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grub_efiemu_check_header (void *ehdr, grub_size_t size,
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grub_efiemu_mode_t *mode)
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{
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/* Check the magic numbers. */
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if ((*mode == GRUB_EFIEMU_NOTLOADED || *mode == GRUB_EFIEMU32)
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&& grub_efiemu_check_header32 (ehdr,size))
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{
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*mode = GRUB_EFIEMU32;
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return GRUB_ERR_NONE;
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}
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if ((*mode == GRUB_EFIEMU_NOTLOADED || *mode == GRUB_EFIEMU64)
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&& grub_efiemu_check_header64 (ehdr,size))
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{
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*mode = GRUB_EFIEMU64;
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return GRUB_ERR_NONE;
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}
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return grub_error (GRUB_ERR_BAD_OS, "invalid ELF magic");
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}
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/* Unload segments */
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static int
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grub_efiemu_unload_segs (grub_efiemu_segment_t seg)
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{
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grub_efiemu_segment_t segn;
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for (; seg; seg = segn)
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{
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segn = seg->next;
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grub_efiemu_mm_return_request (seg->handle);
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grub_free (seg);
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}
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return 1;
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}
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grub_err_t
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grub_efiemu_loadcore_unload(void)
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{
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switch (grub_efiemu_mode)
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{
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case GRUB_EFIEMU32:
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grub_efiemu_loadcore_unload32 ();
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break;
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case GRUB_EFIEMU64:
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grub_efiemu_loadcore_unload64 ();
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break;
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default:
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break;
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}
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grub_efiemu_mode = GRUB_EFIEMU_NOTLOADED;
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grub_free (efiemu_core);
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efiemu_core = 0;
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grub_efiemu_unload_segs (efiemu_segments);
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efiemu_segments = 0;
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grub_efiemu_free_syms ();
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return GRUB_ERR_NONE;
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}
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/* Load runtime file and do some initial preparations */
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grub_err_t
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grub_efiemu_loadcore_init (grub_file_t file)
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{
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grub_err_t err;
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efiemu_core_size = grub_file_size (file);
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efiemu_core = 0;
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efiemu_core = grub_malloc (efiemu_core_size);
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if (! efiemu_core)
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return grub_errno;
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if (grub_file_read (file, efiemu_core, efiemu_core_size)
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!= (int) efiemu_core_size)
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{
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grub_free (efiemu_core);
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efiemu_core = 0;
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return grub_errno;
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}
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if (grub_efiemu_check_header (efiemu_core, efiemu_core_size,
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&grub_efiemu_mode))
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{
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grub_free (efiemu_core);
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efiemu_core = 0;
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return GRUB_ERR_BAD_MODULE;
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}
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switch (grub_efiemu_mode)
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{
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case GRUB_EFIEMU32:
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if ((err = grub_efiemu_loadcore_init32 (efiemu_core, efiemu_core_size,
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&efiemu_segments)))
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{
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grub_free (efiemu_core);
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efiemu_core = 0;
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grub_efiemu_mode = GRUB_EFIEMU_NOTLOADED;
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return err;
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}
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break;
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case GRUB_EFIEMU64:
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if ((err = grub_efiemu_loadcore_init64 (efiemu_core, efiemu_core_size,
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&efiemu_segments)))
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{
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grub_free (efiemu_core);
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efiemu_core = 0;
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grub_efiemu_mode = GRUB_EFIEMU_NOTLOADED;
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return err;
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}
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break;
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default:
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return grub_error (GRUB_ERR_BAD_OS, "unknown EFI runtime");
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}
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return GRUB_ERR_NONE;
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}
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grub_err_t
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grub_efiemu_loadcore_load (void)
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{
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grub_err_t err;
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switch (grub_efiemu_mode)
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{
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case GRUB_EFIEMU32:
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if ((err = grub_efiemu_loadcore_load32 (efiemu_core, efiemu_core_size,
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efiemu_segments)))
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grub_efiemu_loadcore_unload ();
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return err;
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case GRUB_EFIEMU64:
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if ((err = grub_efiemu_loadcore_load64 (efiemu_core, efiemu_core_size,
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efiemu_segments)))
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grub_efiemu_loadcore_unload ();
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return err;
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default:
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return grub_error (GRUB_ERR_BAD_OS, "unknown EFI runtime");
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}
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}
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